Datasheet PDF, 312 KB, for the LM324 quad op amp, listed in the schematic category without a manufacturer in the name. The four amplifiers share common supply pins and work from a single supply, which makes the part popular in feedback loops of power supplies, battery chargers and comparator-like control stages. Use the pinout and typical circuits to trace feedback networks and check each output. Several makers produce the LM324 with similar specs, but confirm the package and grade marked on the chip before substituting.
The button opens the matching file on RM Schematics, or a source page if it is not catalogued there yet. The original attachment is from @cyberlanelectonik. Enginerys does not host this file.
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